Products & ReviewSeparations
Chelex® 100 Chelating Resin, analytical grade, 200–400 mesh, sodium form, 500 g
Bio-Rad1422842
500 g, cation exchange resin, sodium form, 1% crosslinkage, 200–400 dry mesh size, 75–150 µm wet bead size, ~3,500 MW limit
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Choose analytical grade Chelex 100 Resin, a weak cation exchange media, for chelation, DNA extraction for PCR, and other cation exchange protocols. Use this sodium-form resin for gravity or low-pressure chromatography.
- Fine-mesh resin is effective for high resolution analytical protocols
- Selectivity for divalent over monovalent ions is approximately 5,000 to 1
- Strong attraction for transition metals, even in highly concentrated salt solutions
- Inactivates enzymes, including DNases, that require divalent cations for activity
- Larger volumes and special packaging are available upon request
*Biotechnology grade resin is certified to contain less than 100 microorganisms per gram; molecular-biology-grade resin is certified to be endo- and exonuclease-free and contain no ligase inhibitors.
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Online Resources
- Introduction to Chromatography
- PCR (Polymerase Chain Reaction)
- Introduction to Digital PCR
